钛硅钒分子筛催化环氧化甲基氯丙烯的研究  

Study on Epoxidation of Methallyl Chloride by Titanium-Silicalite-Vanadium Molecular Sieves

作　　者：李红海[1] 吴天祥[2] 孙晓玲[2] 丁丽[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]青岛科技大学化工学院,山东青岛266042

出　　处：《化学反应工程与工艺》2006年第6期570-574,共5页Chemical Reaction Engineering and Technology

摘　　要：采用变温水热合成方法制备了钛硅钒分子筛TSV。以此分子筛为催化剂,在无溶剂的条件下,对甲基氯丙烯与过氧化氢催化环氧化反应进行了研究,制得甲基环氧氯丙烷。利用正交实验,研究了反应温度、反应时间、催化剂用量及反应物摩尔比四个因素对甲基氯丙烯的转化率与甲基环氧氯丙烷的选择性的影响,分析甲基氯丙烯的转化率与甲基环氧氯丙烷的选择性,确定了较佳的反应条件,并进行了催化剂重复使用实验。实验结果表明所制备的催化剂具有较高的稳定性。Titanium-silicalite-vanadium molecular sieves （TSV）, a novel environment-friendly selective oxidation catalyst for H2O2 oxidation system, had been prepared by hydrothermal method. β-Methyl epiehorohydrin （β-MECH） had been obtained from epoxidation of methallyl chloride （MAC） with H2O2, using the prepared TSV as catalyst without any solvents. The optimized reaction conditions such as temperature, time, catalyst amount and molar ratio of methyl chloride to hydrogen peroxide were investigated by the orthogonal experiments, then the conditions were obtained. The stability of TSV catalyst was investigated through its recovery and reuse and the experimental results showed that it had relative stability.

关 键 词：钛硅钒分子筛 环氧化 过氧化氢 甲基环氧氯丙烷 

分 类 号：TQ426.6[化学工程]